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DD949 single phase long-life type meter is used for measuring electric power in single-phase 50Hz or 60Hz AC circuit. It should be fixed to use within the limited working temperature -30~+55°C and the relative humidity of not exceeding 95%, without the corrosive gas and salty spray in the air. It is manufactured by long-life design technique, which has passed the stable life of 25 years' test of China Electrical Industrial Institute Electric Equipment and Meter Quality Inspection Center as well as the KEMA certification.Structure: 1. Case: steel base or bakelite base, AS or PC transparent cover, terminal BL °Ck with 4 impulse output terminals2. Bearing: Al, Ni, Co magnetic bearing3. Register: wheel type, five or six digitals, adjusted low friction designed wheels4. Rotational component: complete unit of worm and shaft, double graphite bush5. frame: complete unitary steel frame or molded aluminum alloy frame6. Braking component: Al. Ni. Co double pole magnet, adjusting board is
Mechanical Meter
